thomson



W, PV, HMS. HML OWK Hammam infn mv 24, new'.

1 ,1 95,87% mmm Aug. 19m.

W. P. THQMSN.

RAIL. JOHN.

uw MAY 2@ 1915.

APPLICATEON Paen'ted Aug. 22, 1916.

3 'SHEETS-SHEET IZ.

WA4/94(5) ITHO/(JON UNITED STATES PATENT OFFICE WILLIAM P. THOMSON, OF NEW YORK, N. Y., ASSEGNOR T0 THE RAIL JOINT COMPANY, OF NEW YORK, N. Y., A CORPORATION 0F NEW YORK.

RAIL-JOINT.

Specification of Letters Patent,

Patented Aug. 22, 1916.

Ylin it known that I, WiLLlMl l. Tiro uson, a citizen of tho United, States, residing zit New York, in thtl county of New York und, Stute of New York, have invented coi'tain now and usi-ful Improvements in Rail- Joints, of which tho following a Sjiociticution.

This invention relates to u novel mul useful ruil joint construction havingr improved means for more ellectivuly and aulvzintugo ously (litributing,Y the*v clmnping ntl'm-t ol' tho joint bolts, particularly when applied to splice hars which have n substantinlij: greater laterul rosistnnce in their hczul mom bers thun is 'found in Said uuniher ot' ordinary anglel burn,

The present invention is primarily7 dosigned to augment thel bolting otiicivnoy of u ruil joint at the` points or :tonos wlwrbr it has been demonstrated that the clamping of the bolts muy be. utilized to the lwst udvunu'ge, und at the sumo time to relievey the abutting ends of the rails oi suoli a iisolilux grip ns prevalent.

To that end, the invontion has for its object to providiy an Qconominal Short rail joint wherein :i Solid clinnpingy silent maintained up to the very ends of thex splice bars and throughout th@I Suid zonvs.

lt has boon dctvrniinml that` undo-r such roniflitions ot' latorul still'nisA in thv, luzul mombors oll splii'o barn. the: olfattivo ri'sistani-"- o't a ruil joint to drlivotion or iteration undyr loud mnrlilion` is osontiullj' 1li-,point ont upon tho dogjrvo oi" irinnvss with whi/:h they Spline ba rs urny Uhunpw ugainst the mile: :it distunces of ajxjnwiximutely lhrw to 5in' ilu-hon away from oaf-h olE tho rail ends. Those lot'utions oontitute thv oli'octivo bolting areas or zones. and nre uually occupied by a Single joint boh, whirh` alono, is not adequate, to hohl tlu` aplico bur with sutil-- cient firmness to awomplh tho bust resulto. Accordingly, tho present invention recognims tho dwirubilit",y olA inrrensing thi bolt ingr capacity of a rail joint within tinx moet vllicvtiw boltiiuf :irons or zonen. whnriby thv spline bars will bo hohl lirmlyY in plum? at Such points whm the: lou-:l is inijionwl thoroon, und a fuller @lli *1 ui" thil rfllioioncy :it tho middle of the lair,

will be reali/,9d than if tho bars werey from' to viild laterali)y at said olvctivo looltirufr :www or mont-S.

Another impor-kruit unil practical ohjuct of the invention, incident to increasing the boltinzg capacity of the joint in the most effective places, is to provide a construction possessing special utility in connection with splice bars ot the heavily reinforced type, so that. such bars may be made much shorter than is they common practice, and an increased carrying Capacity may be obtained, in combination with a very great. saving of metal.

lith thesiund other objncts in View which will be ioiogrnizml by those familiar with thi nt the inwuiion consists in the novel construotiox'n riunbinarion. und arrangement oi" hurts lieroiuat'ter more fully described, illustruind. and iluinwil.

The escntinl iaaturo ol' tho invention involved in tho fon'fmiirzition and localization oi' thc boiling nuiann within they most ftlec tivi` boltiun4 :mi: s or zones, is nocensnrily snsnejitiblc ot' structural modiication und einbodinwnt in unions forms of vonstruction without loyal-Ling from the spirit or Scope of ih@ inventionn but :i pr rrod :ind practi mil fiuboilinwnt oli the ii\`@nt.ion is shown in thv af'i'onuianjiing drawings, in whivlnf Figure l is u side chwntion of n short low-cont ruil joint roinitruuiwl iu avcordnnce with the present invintion, Fig. iS nr Vertivul rms wvlionul viow on ilux lino` {lm-2 of l, thi` liiu of within being through one i Ihny boltz` of thv lmltiniff'ooujilit for One l"i., i in a similar 'vivw ou the, lin?y lthruligh tlv" othvr bolt of the sumo lolting-ioilplrt. FigA -l is ii sido ele- Yiitlni nl'- till" joint thnx-ing' mn' mi. tliiI I'ullS I'Qillui'iil t1.; lwfiifl' lllilrllzki" lili* il'luiilli'll lQ twwn ilu inuof iuuin silim 'nur :xn-ii tho outcr supplenuntal 'lnnijiing hur. Fig. is a detail plan vicw of tho prvlff'able Cmnborvd spring-typo (-lunij'iin) bar.

Similar rvfororu@ ehnrrutwsileignute non respoinling puri, Lirouglmut 'the Several fig unisa ot' thc drawlngS.

Tho invention fundnuu-ntnlly includes, in combination with the rails, u nmin Splice bnr l fitting` thtl fishing; spans: of the rails, :in nuto!" siuijilonufntal olzin'iping: har bind" ing` :igainnt thv outvr nil@ oiE the main Splice bur, :ind u plnralitj of bolts. As heroin indif-atcil, ilu` most ollwtive bolting :iron is lof'atvd :it u :uibstantial distance u :1y from tho onda of tho ruilw` ordinarily approxilnatingr from thi-0i to sin inclini.. ln order to intrvariif tho boltini,r Capacity und damping effeet of the joint within these areas, the present invention provides for locating in each ot sueh areas a doublediolting unit Consisting of a pair ot' joint bolts 3%3 arranged eloser together than eustomary and disposed at sueh distanee away from the rail end that the said units are distinctly isolated. Usually, though not neressarily. this grouping or pairing ot the joint bolts into separate holting units, on*y unit tor eaeh rail, involves plaeing the bolts in ear-h unit closer together than the distance betwelai the middle of the iointianihtln nealrest one ot said bolts, thus leaving airlilatively exteiuled unbolted areay within the middle ol the `joint between the inner bolts ot the opposite bolting units. This provides a, striuture having an augmented bolting Capacity within each of said Ctl'eetive areas or zones that insmes a solid (damping elieet up to the extreme ends of the splice ba rs. as well as throughout sueh areas or zones. ln this eonneetion` it will be nnderstood that this feature ol' the invention is practical and eli'eetive regardless of the length ot' the splice and clamping bars` However, a preferred and useful application ot this improvement in the bolting means of a joint is shown in the aerompanying drawings, and t'urther rel'e1.'enee thereto will now he made.

As shown in the drawings` the present invention involves :mother t'eatureol" praetieal importainae. This is the feature ol having a relatively short inner main spliee bar l and a longer outer elamping har it so that the end portions ol the rlamping bar pro jeet beyond the ends olx the, spliee bar and reoeive therethrough the outermost holt ol" the holting units. As plainly illustrated in Figs l, il and #l oli the drawings, the outermost bolt ol eaeh bolting unit passes through the rail weh and the ends ol" the elamping ha rs 2 upon opposite sides ol the rail. while the inner holt I ot' the same unit passes through both bars 1 and 2 and also through the rail` web` thus realizing the purposes ol the. invention in the most etlertive manner. lnnddition to this leature oll eonstruetion, itinay also be found preferable to malte the elamping harpiI spring steel and earnber it slightly, as indirated in Vig. 5 ol the drawings. so that it will have a substantial loelv'- ing elleet upon they nuts ol' the bolts when the end portions of said ha r are drawn lirmly into plaee against the ends ol' the splice har by.y the tightening up ot the bolts ol' the dimhlesholting unit.

While the invention is suseeptible ol general applieation Le spliee bars ot' dill'erent. forms olI eonsti'uchnn. in so lla r as the'leatures il iniprovmrient already rel'erred to are roneeined. iuverlliele -s it. is prel'erable to utifinf` the improvement in eombination with heavily reinlori'ed spliee bars .so that the latter may be made shorter than usual, while at the same time an increased carrying' eapaeity may be obtained with a saving of metal. This phase of the invention involves the employment of a splice bar having the eharaeteristies et the bar shown in Figs 2 and 3 of the ilrawings. 1in other words, the illustrated form ot' spliee bar l embodies a distribution ot' metal whieh makes the bar substantially stronger, both vertieally and laterally`r than the eonventional angle bar. 1n this type ol bar, the portion thereof lying above the horizontal neutral axis is ma terially stronger laterally than the ordinary .forms otl splice bars. lt will be observed that the seetion modulus ol' the portion ol' the bar lying above` the lmrixontal neutral aXis is inrreased over eommon praetiee to a point where it approximately balanees thel section modulus of the portion ot' the spline har lying below the horixontal neutral axis. Snell distribution olA metal.r when limited to praetieal working eonditions. requires the use ot' a very materially e.'1l:.1rged and widened head 5 including an inner head projection l and an onteihead projertion 7 providing` ,in eombination with the web ot the bar and its toot, an Ibeam distribution ot' metal sin-h as prevails in the rail section itselt'. The praetieal importanee oli' this inerease ot' lateral resistanee in the head 5 of the spliee bar will be appreciated when it is noted that as the inside bolts ot a rail `ioint are moved l'arther away lrom the rail ends, and eonseuuenlly away trom the middle ot' the splire bar itsel l'` the tendenify ol5L the bars to bulge outwardly lrom the rails at the eenter ot' the lvioint is inereased. However, the additional lateral stillness provided t'or in the enlarged head ol' a bar ot' the type rel'erred to, not only oil-sets this inereased tendeney ot theibar to bulge outward at the middle` but in laet renders suoli tendeney even less than it would be it ordinary angle bars were employed with the inside bolts i-loser to the rail ends than is required in aceordanre, with the present invention. l"urthermoro in the' prel'erahle eonstruetion reA YI'erred to. the spliee bar. having the diss tribution ot metal deseribed, is formed at its outer side with a ehanneled seat reeeiving the outer elainping bar 2. This channeled seat is l'ormed with upper and lower beveled bearing fares h' and il respectively, whieh eonverge inwardly toward the rail, and are elampingly engaged by eorrespondingly beveled bearing t'aees l() l'ormed at the inner side ot the upper and lower edge portions oll the elamping har By reason of this partieular eonstruetion and tit ol' the main spliee bar and the supplemental elamping bar, a partieularly advantageous result is obtained. namely that ot' adding,r the vertieal earrying eaparity ol the clamping bar to that olA the splise hir.

From the foregoing,

itiS thought thatl the essential features of the4r invention will j be" recognized without further description,

without departing from the spirit of the in `ven'tion orscope of the appended claims.

I claimzl;

.1. A railjjoint'iincluding,

bolts grouped into separate bolting units located in bolting areas at a distance from the rail ends, the bolts of each unit being arranged closer together than the distance between the innermost bolts of the opposite u'nits. l! j 7 A rail joint including the rails, a splice bar, an outer clamping bar, and the joint in combination, j fbolts grouped into separate bolting units the rails, a splice bar having a reinforced.' flglocated in bolting areas at a distance'from head portion having a continuous bearing under thJ heads of both rails, and the jointl grouped in distinctly isolated bolting/` oca bolts units tbd in areas at a distance from the rail ends, the bolts of each unit being disposedvcloser;I together than the distance between th'innermost bolt of each unit and lthe adjacent rail end. "i

c4312. A railjjjoint including; in combination,

.. head the rails, .a splice bar having a reinforced portibn having a continuous bearing under the heads of bothirails, and the joint bolts grouped in distinctly isolated `baiting units located in areas at a distance f om the rail ends, Athe bolts of each unit being dis-I ',"posed closer together than the distance be-y y"tween theiinnermost bolt of each unit and the adjacent rail end thereby leaving a relatively extended unbolted area within the `middle off; the joint between the inner bolts `of the op' osite units.

lasl

3. A-rail join/t` including the rails, asplice bar, an duter clamping bar, and the joint1 bolts grouped vr,finto distinctly ,isolated bolting units". located in bolting' areas at a. distance frdm the rail'ends, certain of thebolts extending through only/"the lclamping bar and therails. l l i 4. A rail jointincludingsthe, rails,`a splice bar, anf'outer clamping ar, and the joint boltsl grouped into distinctly/ isolated bolting units locatedy ini boltingvareas at a distance from the/raill ends'.

Y5. A rail/joint in'cludin l.the rails, a splice.

bar, an outer Aclamping ar, and the joint bolts grou red intoiseparate bolting units located in ,l olting areasfat a distance from the rail endsygleaving a relatively extended unbolted' area Within Itbemiddle portion of the joint.

. 6. A rail joint including the rails, a splice bar, 'an outer clamping ar, and the joint /lthe rail ends, the bolts of each unit being arranged at least as close together vas the distance between the innermost bolt of each unit and the adjacent rail end.

8. A rail joint including the rails an inner splice bar,ran outer clamping ar engaging the outer lside of the splice bar, and a closely disposed double-bolting unit engaging the bars at a distance from the rail en s. J

9. Ay rail joint including the rails, an inner splice bar, a enacting outer clamping y'bar, and a double bolting-unit consisting of a `pair of relatively close bolts engaging both bars at a distance from the rail ends.

l0. A rail joint including the rails, a Splice'bar, a clamping bar, and joint bolts, y certain bolts extending through both bars and the rails, and other bolts extending through only the clamping bar and the rails 11. A rail joint including the rails, a

splice bar, a clamping bar of greater length than the splice bar, and joint bolts, certain bolts'extending through both bars and the rails7 and other bolts extending through only the clamping bar and the rails. 12. A rail joint including the rails, an inner splice bar, an outer clamping bar of greater length than the splice bar, and a double bolting unit consisting of a pair of bolts, one of which extends through both bars and ,the rail, and the other of which extends through the projecting ends of the clamping bar and the rail.

In testimony whereof I hereunto affix my signature in the presence of two Witnesses.

WlLLlAls/I P. THOMSON. 

